@Joe80, I think Nintendo will react to Sony (launch portable when Sony announced theirs), not the other way around like you predicted (Nintendo first, Sony second).
IMO, launching first is more beneficial for 2nd ranked console (not much to lose), while 1st ranked console will try to lengthen the cycle as long as possible (lots of potential profit to lose). Since PSP is in the 2nd place, I think Sony will make the first move.
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I think Nintendo will react to Sony (launch portable when Sony announced theirs), not the other way around like you predicted (Nintendo first, Sony second).
IMO, launching first is more beneficial for 2nd ranked console (not much to lose), while 1st ranked console will try to lengthen the cycle as long as possible (lots of potential profit to lose). Since PSP is in the 2nd place, I think Sony will make the first move.